Qhov ntsuas hluav taws xob ntsuas los ntawm pointer multimeter siab dhau lawm
Qee lub sij hawm, thaum ntsuas hluav taws xob circuits, ntau yam kev ntsuas muaj feem cuam tshuam xws li ntsuas kev ntsuas, cov qauv hauv Circuit Court, kev tiv thaiv sab hauv, thiab lwm yam ntawm multimeter tuaj yeem ua rau txo qhov ntsuas qhov tseeb. Cov yam ntxwv xws li kev khiav hauj lwm zaus ntawm qhov ntsuas hluav taws xob thiab kev ua haujlwm ntawm cov khoom siv hluav taws xob kuj tuaj yeem ua rau kev ntsuas qhov yuam kev.
Yog li ntawd, kev ntsuas ntawm qee qhov circuits kuj yuav tsum tau saib xyuas cov twj paj nruag. Feem ntau, thaum ntsuas qhov hluav taws xob ntawm lub voj voog, cov twj paj nruag uas muaj kev tiv thaiv sab hauv yuav tsum tau xaiv los txo qhov kev hloov pauv ntawm qhov ntsuas mus rau hauv Circuit Court. Thaum ntsuas qhov hluav taws xob tam sim no, sim xaiv cov twj paj nruag uas muaj qhov tsis kam sab hauv, tab sis qhov tsis kam ntawm qhov ntsuas tsis tuaj yeem yog xoom. Yog li ntawd, tom qab txuas lub ammeter nyob rau hauv series, lub internal kuj ntawm lub ntsuas yuav inevitably faib lub Circuit Court, uas ua rau inconsistent tsis nyob rau hauv lub Circuit Court debugging thiab ua hauj lwm. Txhawm rau zam qhov yuam kev saum toj no, kev ntsuas tsis ncaj yog siv, ntsuas tam sim no thaum ntsuas qhov ntsuas hluav taws xob thiab ntsuas qhov ntsuas hluav taws xob thaum ntsuas tam sim no. Thaum ntsuas qhov ntsuas hluav taws xob, ua ntej ntsuas qhov ntsuas tus nqi ntawm cov resistor, thiab tom qab ntawd ntsuas qhov tam sim no ntawm Circuit Court, uas tsis ncaj qha tau txais qhov ntsuas hluav taws xob. Thaum ntsuas qhov tam sim no thiab qhov hluav taws xob, nws tseem yuav tsum tau ua ntej ntsuas qhov tsis kam ntawm Circuit Court thiab tom qab ntawd ntsuas qhov ntsuas hluav taws xob hla lub resistor kom tau txais qhov tseeb dua tam sim no tus nqi. Tau kawg, cov txheej txheem no kuj yuav tsum tau hloov pauv tau yooj yim thiab siv, thiab kev txheeb xyuas circuits kuj tseem ceeb, tshwj xeeb tshaj yog pib los ntawm kev muaj tiag.
Tus pointer multimeter ntsuas qhov ntsuas hluav taws xob siab. Koj tuaj yeem sim qhib lub nraub qaum thiab nrhiav cov calibration resistor ntawm lub taub hau 'meter', uas feem ntau yog ib qho kev hloov kho tau txuas nrog hauv koob nrog lub taub hau ntsuas. Nyob rau tib lub sijhawm, nrhiav qhov zoo dua digital multimeter thiab kho nws kom pom tias nws tuaj yeem ntsuas tau. Yog tias qhov sib txawv tsis tseem ceeb, nws feem ntau tuaj yeem ntsuas tau.
Yog tias muaj qhov sib txawv loj, siv lub ntsuas hluav taws xob los ntsuas qhov hluav taws xob sib faib ua haujlwm ntawm txhua lub iav thiab saib seb puas muaj qhov kub hnyiab lossis tus nqi sib txawv.
Yog tias tsis muaj leej twg muaj, ces cov plaub hau yuav muaj hnub nyoog thiab ua npub. Lub zog sib npaug ntawm lub caij nplooj ntoos hlav tshuav yuav tsum tau hloov kho, uas yog qhov kev ntxhov siab nyob rau sab sauv thiab qis qis thaum lub pointer rov qab mus rau xoom. Qhov siab dua qhov kev ntxhov siab, qhov qis dua qhov rhiab heev ntawm lub taub hau meter, tab sis qhov zeroing yog ceev thiab raug. Qhov qis dua qhov kev ntxhov siab, qhov siab dua ntawm lub taub hau meter, tab sis qhov zeroing rov ua haujlwm tsis zoo.
Yog tias tsis muaj cov cim qhia txog kev puas tsuaj nyob rau hauv qhov xwm txheej koj tau hais, nws yuav tsum tau txiav txim siab tias nws yog ib qho teeb meem nrog kev kho lub caij nplooj ntoo hlav ntawm lub taub hau meter.
Cov yam ntxwv uas cuam tshuam rau qhov tseeb ntawm qhov ntsuas ntsuas qhov ntsuas hluav taws xob yog qhov hluav taws xob faib hluav taws xob thiab qhov rhiab heev ntawm lub taub hau 'meter'. Kev nyeem ntawv loj dhau lawm yog qhov tsis tshua muaj qhov txhaum, feem ntau yog vim qhov txo qis ntawm lub taub hau meter, sib nqus steel attenuation, thiab hlau pins hauv qhov sib nqus sib nqus, uas tuaj yeem ua rau kev nyeem ntawv tsawg dhau thiab tus taw tes yuav daig. . Hauv qhov no, koj tuaj yeem siv cov nplaum los ntxuav tus pin hlau, thiab feem ntau cov ntawv nyeem tuaj yeem rov qab los rau qhov qub.
